Improvement in center-slide drop-lights



C. DEAVS.

Center-Slide Drop-Lights.l

Patented May 20,1873.

Uivrrnn STATES lPA'rEN'r GFFIGE.

CHARLES DEAVS, OF NEW YORK, N. Y., ASSIGNOR TO THE ARCHER AND PANCOAST MANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN CENTER-SLIDE DROP-LIGHTS.

Specification forming part of Letters Patent No. 139 123, dated May 20, 1873; applicatmn filed February 6, 1672.

To all whom it may concern:

Be it known that I, CHARLES DEAVS, of the city, county, and State of New York, have invented an Improvement in Center-Slide Drop- Lights, of which the following is a specification:

This invention consists in a novel combination and arrangement of parts in a gas-chandelier, in which there is'einployed one or more stationary branch lights and a center droplight, the latter controlled in its movement by a spring drum or pulley, (one or m0re,) arranged in a case affixed to the main stem oi' the chandelier, whereby a chandelier of a new and improved construction is obtained.

In the accompanying drawing, Figure 2 is a horizontal section of a gasalier constructed according to my invention; and Fig. l is a vertical section ot' the same.

Similar letters of reference indicate corresponding parts in both figures.

A is the main stem of the gasa-lier, consisting of a pipe, the lower end of which is screwed into the distributer B, from which extend branch pipes C C, communicating with the branches ot' the gasalier. Into the bottom of this distributer a pipe, D, forming a continuation of the stern, is screwed. A collar, E, is secured to this pipe D by being driven thereon, or in any other suitable manner. To opposite sides of this collar the spring-barrels G G are pivoted by pins F F, which are screwed into or otherwise tirmly attached to the said collar7 and upon which the said barrels turn freely.

The said barrels are flanged at their edges, and constitute pulleys for the reception ot' cords S S, which are attached to the arms b b, provided on the lower part ofthe center slide or tube H. rlhey have arranged Within them convolute springs I I, which are secured at one end to the interior of the barrels themselves, and at the other to the screws forming their pivots or axles. The body or center piece J of the gasalier is supported by means of branch pipes C C, passing through holes in it, and it surrounds and conceals from view the springbarrels G G, but may be supported in any other suitable manner by which it may be made to conceal the said barrels. In the bottom ot' the body there are provided holes a a for the passage of the cords S S. \Vhat is called the harp,77 which carries the drop-light burner and shade, is attached to the center slide H, below the arms I) b.

As the drop-light isdrawn down, the cords unwind from the spring-barrels, and produce the winding or unwinding ofthe springs therein, and the weight of the center slide and its attachment is thereby sustained. When the drop-light is raised, the reverse operation of the springs effects the rotation of the springbarrels, winds the cords up, and still supports Claim.

l. The combination, in a gasalier, of the inclosing-case J, the distributer B, the stationary branch-light ducts C, one or more, and the drop-light duct H, and Vthe spring drums or pulleys G, and cords S, substantially as herein specified.

2. The relative arrangement of the inclos ing-case J, spring drums or pulleys G, cords S, and center drop-light duct H, whereby the saidcords S are substantially concealed within the case J when the drop-light is not drawn down for use, substantially as herein specified.

3. In a drop-light gasalier, the combination of the spring drums or pulleys G, one or more, with the drop-light duct H, when the latter is arranged to slide Within and not 'upon the main suppl y-stem A, substantially as herein specitied.

4. 'Ille combination in a gasalier of the folthe relative position between the stationary i lowngeleinents orpzirts: Asupply-stem, A, :1` light; or lights and the drop-light, substandistributer, B, branch arms C, (one or 1no1e,) tially as herein specified.

for conveying gas to stationary branch lights, CHARLES DEAVS. sliding pipe H, for conveying gas to a center Witnesses: drop-light, spring drums or pulleys Gr, one or R. E. RABEAU,

more, provided with cords S for regulating FRED. HAYNES. 

